Developmental neuropsychiatry: concepts, issues and prospects.

The empirical findings on the cognitive and behavioral sequelae of head injury in childhood are integrated with others in the literature in order to consider some of the outstanding issues and dilemmas that remain in the field of developmental neuropsychiatry. Particular attention is paid to the apparent nonspecificity of the cognitive sequelae of localized brain lesions in childhood, possible specificities in brain-behavior relationships, the probable importance of age effects in altering the impact of brain lesions, and the threshold above which brain injury may have persistent psychological sequelae.